Texas Instruments

TPS92622-Q1 Automotive High-Side LED Driver

Texas Instruments' 2-channel driver features thermal sharing and is AEC-Q100-qualified for automotive applications

Image of Texas Instruments' TPS92622-Q1 Automotive High-Side LED DriverTexas Instruments' TPS92622-Q1 two-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92622-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 150 mA per channel. The external shunt resistors are leveraged to share output current and dissipate power out of the driver.

The device has full-diagnostic capabilities including LED open, LED short-to-GND circuit, and device overtemperature protection. The one-fails-all-fail feature can work together with other LED drivers such as the TPS9261x-Q1, TPS9262x-Q1, TPS9263x-Q1, and TPS92830-Q1 devices, to address different requirements.

Features
  • AEC-Q100-qualified for automotive applications:
    • Temperature range Grade 1 TA: -40°C to +125°C
  • Wide input voltage range: 4.5 V to 40 V
  • Thermal sharing by an external shunt resistor
  • Low supply current in fault mode
  • Two high-precision current regulators:
    • Current output: up to 150 mA for each channel
    • Accuracy: ±5% over the full temperature range
    • Independent current setting by a resistor
    • Independent PWM pin for brightness control
  • Low dropout voltage (max.): 350 mV for 150 mA
  • Diagnostics and protection:
    • LED open-circuit with auto-recovery
    • LED short-to-GND with auto-recovery
    • Diagnostic enable with adjustable threshold
    • Fault-bus is configurable as one-fails-all-fail or only-failed-channel off (N-1)
    • Thermal shutdown
  • Operation junction temperature range: -40°C to +150°C
Applications
  • Automotive exterior rear lights: rear lamps, center high-mounted stop lamps, and side markers
  • Automotive exterior small lights: door handles, blind spot detection indicators, and charging inlets
  • Automotive interior lights: overhead consoles and reading lamps
  • General-purpose LED drivers

TPS92622-Q1 Automotive High-Side LED Driver

ImageManufacturer Part NumberDescriptionTypeTopologyInternal Switch(s)Available QuantityPriceView Details
AUTOMOTIVE TWO-CHANNEL 40-V HIGHTPS92622QDRRRQ1AUTOMOTIVE TWO-CHANNEL 40-V HIGHLinearConstant CurrentNo2521 - Immediate$18.19View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionCurrent - Output / ChannelOutputs and TypeFeaturesAvailable QuantityPriceView Details
EVAL BOARD FOR TPS92622-Q1TPS92622Q1EVMEVAL BOARD FOR TPS92622-Q1130mA2 Non-Isolated OutputsDimmable5 - Immediate$1,669.45View Details
Published: 2023-03-10

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